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Move fixed point value to latitude_fixed and longitude_fixed members.

This commit is contained in:
Tony DiCola 2014-08-07 02:04:24 -07:00
parent 32e40234c8
commit 5523d30fed
2 changed files with 14 additions and 5 deletions
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12
Adafruit_GPS.cpp
View File

@ -70,7 +70,8 @@ boolean Adafruit_GPS::parse(char *nmea) {
strncpy(degreebuff + 2, p, 4);
degreebuff[6] = '\0';
long minutes = 50 * atol(degreebuff) / 3;
latitude = degree + minutes;
latitude_fixed = degree + minutes;
latitude = latitude_fixed / 100000.0F;
p = strchr(p, ',')+1;
if (p[0] == 'N') lat = 'N';
@ -89,7 +90,8 @@ boolean Adafruit_GPS::parse(char *nmea) {
strncpy(degreebuff + 2, p, 4);
degreebuff[6] = '\0';
minutes = 50 * atol(degreebuff) / 3;
longitude = degree + minutes;
longitude_fixed = degree + minutes;
longitude = longitude_fixed / 100000.0F;
p = strchr(p, ',')+1;
if (p[0] == 'W') lon = 'W';
@ -147,7 +149,8 @@ boolean Adafruit_GPS::parse(char *nmea) {
strncpy(degreebuff + 2, p, 4);
degreebuff[6] = '\0';
long minutes = 50 * atol(degreebuff) / 3;
latitude = degree + minutes;
latitude_fixed = degree + minutes;
latitude = latitude_fixed / 100000.0F;
p = strchr(p, ',')+1;
if (p[0] == 'N') lat = 'N';
@ -166,7 +169,8 @@ boolean Adafruit_GPS::parse(char *nmea) {
strncpy(degreebuff + 2, p, 4);
degreebuff[6] = '\0';
minutes = 50 * atol(degreebuff) / 3;
longitude = degree + minutes;
longitude_fixed = degree + minutes;
longitude = longitude_fixed / 100000.0F;
p = strchr(p, ',')+1;
if (p[0] == 'W') lon = 'W';

7
Adafruit_GPS.h
View File

@ -119,7 +119,12 @@ class Adafruit_GPS {
uint8_t hour, minute, seconds, year, month, day;
uint16_t milliseconds;
int32_t latitude, longitude;
// Floating point latitude and longitude value in degrees.
float latitude, longitude;
// Fixed point latitude and longitude value in 1/100000 degrees.
// For example a latitude of 4,767.99916 degrees would have a value of 476799916.
// More precise than the floating point value, but a little more difficult to use.
int32_t latitude_fixed, longitude_fixed;
float geoidheight, altitude;
float speed, angle, magvariation, HDOP;
char lat, lon, mag;